Watson described the purpose of psychology as: âTo predict, given the stimulus, what reaction will take place; or, given the reaction, state what the situation or stimulus is that has caused the reactionâ (1930, p. 11). * All behavior is learnt from the environment.
Additional tests including penetration,solubility, and ductility are made on the residue. Cutback asphalt grades and tests There are several grades for each of the three types ofcutbacks â rapid curing (RC), medium curing (MC), andslow curing, (SC). The grades include 70, 250, 800, and3000.
The two types of asphalt shingles, fiberglass and organic, possess the following characteristics: 1  Organic Asphalt Shingles: Asphalt shingles have an organic felt made from thick paper (often waste paper or wood/paper pulp). 2  Fiberglass Asphalt Shingles: These shingles have a base composed of fiberglass (glass fibers).